Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6UD callsign genealogy
Currently held by HARP USA DX TEAM
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K6UD's current licensee, walking backwards.
- KI6GXLcancelledHarp Usa DX TeamCAgranted 2006-12-07cancelled 2007-10-23
Successor callsigns
Callsigns held now by people who previously held K6UD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6UD, oldest first.
- TUTTLE, LEWIS E CA1997-10-15 → cancelled 2003-04-12
- HARP USA DX TEAM CA2017-08-08 active